| 摘要 |
#CMT# #/CMT# The method involves forming a large bore channel (4) in a bore head (9) by a large cutting wheel (7) driven by a main drive (14) for a large pipeline (2) and forming a small bore hole (3) parallel to an axis of an exterior of the large bore channel by a small cutter wheel (6) driven by an auxiliary drive for a small pipeline (1). The large pipeline is moved in the large bore channel, and the small pipeline is pulled in the small bore hole. #CMT# : #/CMT# An independent claim is included for a device for laying two pipes, particularly energy supply pipeline, such as oil or gas pipeline and water supply pipeline, in ground. #CMT#USE : #/CMT# Method for laying two pipes, particularly energy supply pipeline, such as oil or gas pipeline and water supply pipeline, in ground. #CMT#ADVANTAGE : #/CMT# The method involves forming a large bore channel in a bore head by a large cutting wheel driven by a main drive for a large pipeline, and hence ensures cost effective and improved two pipes laying method. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a schematic sectional view of a two pipes laying device. 1 : Small pipeline 2 : Large pipeline 3 : Small bore hole 4 : Large bore channel 6 : Small cutter wheel 7 : Large cutting wheel 9 : Bore head 14 : Main drive. |
